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Abstract #3261

4D Radial-Sliding Window MR Angiograpy of Intracranial Arteriovenous Malformations: Correlation with Digital Subtraction Angiography

Christopher Sean Eddleman1, Hyun Jeong2, Michael C. Hurley2, Christopher C. Getch, Guilherme Dabus2, Bernard R. Bendok2, Hunt H. Batjer, Timothy J. Carroll2

1Neurological Surgery, Northwestern University, Chicago, IL, USA; 2Radiology, Northwestern University

While digital subtraction angiography (DSA) of intracranial arteriovenous malformations (iAVMs) allow the capturing of very high temporal resolution hemodynamic images, time-resolved MR angiography is catching up. Using a radial sliding window and mask subtractions, this time-resolved MRA sequence captures iAVMs at 6 frames/sec and at sub-millimeter spatial resolution, approximating DSA. Here we demonstrate the comparison of 4D RS-MRA and DSA images of iAVMs.